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Bioanthropological analysis of human occipital condyles using geometric morphometric method.

Abstract：

:Sex differences are present in all parts of the body, including the skeletal system. Several methods are used to analyze the sex differences of skeleton, while more recently, a new method called geometric morphometry has been used. The aim of this study was to examine the sexual dimorphism of occipital condyles on human skulls originating from the population of Bosnia and Herzegovina using the geometric morphometric method. Material and methods:The study was conducted on 214 human skulls of known gender from Bosnian population. For analysis of sexual dimorphism of occipital condyles, we used geometric morphometry, where all the skulls were scanned to obtain three-dimensional skull models. On the obtained models, we marked anthropometric points on occipital condyles in a Landmark Editor program from which we exported data in the form NTSYS file and analyzed it in MorphoJ program. Results:First principal component PC1 describes 26.917% of total variability, the second principal component PC2 describes 20.992% of total variability, while the first eight principal components together describe 100% of total variability. The greatest variability between the male skulls and female skulls was present in the anterior-posterior diameter (length of occipital condyles). Discriminant functional analysis of the shape and size of the occipital condyles was possible with 69.50% accuracy for male skulls and with 60.27% accuracy for female skulls. The size of the occipital condyles showed a statistically significant effect on sexual determination. Discriminant functional analysis of the shape of the occipital condyles without affecting size enabled the determination of gender with with 65.96% accuracy for male skulls and with 63.01% accuracy for female skulls. Conclusion:Analysis of sexual dimorphism of occipital condyles using geometric morphometry showed statistically significant differences in the shape and size of occipital condyles between the sexes. The accuracy of sex determination based on occipital condyles was higher for male gender.

journal_name

Saudi J Biol Sci

journal_title

Saudi journal of biological sciences

authors

Aida SH,Zurifa A,Ilvana H,Senad Š,Maida RT,Izeta A,Kapo Sanita M,Rifat H

doi

10.1016/j.sjbs.2020.09.019

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

3415-3420

issue

eissn

1319-562X

issn

2213-7106

pii

S1319-562X(20)30425-3

journal_volume

pub_type

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Bioanthropological analysis of human occipital condyles using geometric morphometric method.